In plain words
foolishly tormenting the aggregate of organs in the body and Me also who dwell within the body—know them to be resolved in an āsuric way.
Word for word
emaciating the aggregate [of organs] dwelling in the body, the undiscriminating, and even Me dwelling within the body: know them [to be] of āsuric resolve.
कर्शयन्तः शरीरस्थं भूतग्राममचेतसःमां चैवान्तःशरीरस्थं तान् विद्ध्यासुरनिश्चयान्
Other commentaries
The commentators
▸Bhagavadgītābhāṣyam· bhāṣya
कर्शयन्तः कृशीकुर्वन्तः शरीरस्थं भूतग्रामं करणसमुदायम् अचेतसः अविवेकिनः मां चैव तत्कर्मबुद्धिसाक्षिभूतम् अन्तःशरीरस्थं नारायणं कर्शयन्तः, मदनुशासनाकरणमेव मत्कर्शनम् , तान् विद्धि आसुरनिश्चयान् आसुरो निश्चयो येषां ते आसुरनिश्चयाः तान् परिहरणार्थं विद्धि इति उपदेशः ॥ ६ ॥
In plain words
'Wasting away' means causing to waste: they starve the body's own collection of organs, the whole array housed within it -- senseless people, without any real discernment -- and they waste Me too, right there, dwelling within that same body as the silent witness of its every thought and act -- Narayana Himself, wasted away by them; because failing to live by My teaching is itself what it means to waste Me. Know such people, Arjuna, to have a demonic resolve -- meaning, their very conviction is demonic -- know them, so that you may keep away from them. That is the teaching here.
Close to the Sanskrit
'Emaciating' -- causing to become emaciated -- the group of elements residing in the body, i.e. the collection of organs -- the senseless, the undiscriminating -- and Me too, indeed, present within the body as the witness of the intellect and actions of that [body] -- Narayana -- emaciating [Me]; the non-performance of My ordinance is itself 'the emaciation of Me.' Know those [people] to be of demonic resolve -- 'demonic resolve' [means] those whose resolve is demonic; know them, for the purpose of avoiding them -- this is the instruction.